Right off the bat, we’re not doing a game whereby you can just pull a weapon or vehicle out of nowhere. So whatever item you have is either visible or has a plausible explanation as to why it is not visible.

By default you can carry one primary weapon, one secondary weapon and as much ammo and inventory items as your character allows. If you have a backpack or weapons pack, you can carry additional items depending on their capacity.

Similarly, your character can only attach certain items to key points. e.g. if you have a backpack or weapons pack attached to your back, you can’t have a jetpack or wingsuit, since those attach to the back as well.